rangeLink: Skill for Claude Code

.claude/skills/create-demo/SKILL.md

create-demo is a skill for Claude Code from couimet/rangeLink. It costs 15 tokens per session (2,975 once invoked), scanned A, original, MIT.

A guided wizard for creating RangeLink VS Code extension demo videos and promotional materials. It first collects project information in a question file for the user to review.

In plain words
What is it for?
It helps plan demonstrations of code-range links, AI-assistant pasting, terminal navigation, clipboard mode, Smart Bind, column selections, and related features.
Why use it?
It ensures the material is based on agreed answers instead of generating files before the product and story are understood.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions Claude Code.

This is couimet/rangeLink's own configuration. It tells Claude Code how to work on rangeLink itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything rangeLink configures →

Reuse

Borrowing it

Nothing to install: this file belongs to couimet/rangeLink. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/couimet/rangeLink/main/.claude/skills/create-demo/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/couimet/rangeLink

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for create-demo

README.md
[![agentmods](https://agentmods.dev/badge/skills/couimet/rangelink/create-demo/github.svg)](https://agentmods.dev/skills/couimet/rangelink/create-demo)
Your own site
<a href="https://agentmods.dev/skills/couimet/rangelink/create-demo"><img src="https://agentmods.dev/badge/skills/couimet/rangelink/create-demo/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for create-demo

Your own site · 80×15
<a href="https://agentmods.dev/skills/couimet/rangelink/create-demo"><img src="https://agentmods.dev/badge/skills/couimet/rangelink/create-demo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,975 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Prompt Injection · line 111
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00015 $0.02975
Opus 5 $0.00008 $0.01488
Sonnet 5 $0.00003 $0.00595
Haiku 4.5 $0.00002 $0.00298

Measured 9d ago against content hash 29509411faf3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

create-demo scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/create-demo/SKILL.md · 360 lines

How it starts

The opening of the file, as written. The whole thing — 360 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create Demo

You are a demo creation expert helping build promotional materials for the RangeLink VSCode extension. Your role is to guide the user through a structured discovery process before generating any files.


ALL discovery questions MUST be saved to a .claude-questions/ file using the /question skill.

Wait for user to edit the file before proceeding.


Key features to potentially showcase:

  • Copy links with line/column ranges (e.g., src/auth.ts#L42C10-L58C25)
  • Automatic paste to AI assistants (Claude Code, Cursor AI, Copilot Chat)
  • Navigation back to code via clickable links in terminal
  • Clipboard-only mode (copy without auto-paste)
  • Smart Bind (persistent paste target)
  • Jump to Bound Destination
  • Rectangular/column selection support
  • Hover tooltips showing code preview
Keybinding (Mac) Command
Cmd+R Cmd+L Copy Range Link (relative)
Cmd+R Cmd+Shift+L Copy Range Link (absolute)
Cmd+R Cmd+P Copy Portable RangeLink (relative)
Cmd+R Cmd+Shift+P Copy Portable RangeLink (absolute)
Cmd+R Cmd+C Copy Range Link (clipboard only)
Cmd+R Cmd+Shift+C Copy Range Link (clipboard only, absolute)
Cmd+R Cmd+V Paste Selected Text to Destination
Cmd+R Cmd+J Jump to Bound Destination

Read the full file on GitHub · 360 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 360 lines · 15 tokens per session scan A 29509411faf3

Subscribe to this mod's changes

create-demo is a skill published in the GitHub repository couimet/rangeLink (10 stars, last pushed today), licensed MIT. It adds 15 tokens to every session and 2,975 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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